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Operant conditioning - skinner

a report for Education 12-facilitating learning

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Operant conditioning - skinner

  1. 1. 0PERANTCONDITIONINGSKINNER,Burrhhuss Frederick
  2. 2. B F. Skinner Is Best Known For:  Operant conditioning  Schedules of Reinforcement► He received a B.A. in English literature in 1926 fromHamilton College, and spent some time as a strugglingwriter before discovering the writings of Watson andPavlov.► Inspired by these works, Skinner decided to abandon hiscareer as a novelist and entered the psychology graduateprogram at Harvard University. ► In 1945, B.F. Skinner moved to Bloomington, Indiana and became Psychology Department Chair and the University of Indiana. In 1948, he joined the psychology department at Harvard University where he remained for the rest of his life. ► He became one of the leaders of BEHAVIORISM and his work contributed immensely to experimental psychology. He also invented the Skinner box, in which a rat learns to obtain food by pressing a lever. 2
  3. 3.  OPERANT - Any active behavior that operates upon the environment to generate consequences OPERANT CONDITIONING - The behavior is followed by a consequence, and the nature of the consequence modifies the organisms tendency to repeat the behavior in the future 3
  4. 4.  OPERANT CONDITIONING  -learning occurs as the result of consequences. The components of learning expand to include a key characteristic:  REINFORCEMENT  The new equation for learning now looks like this: Stimulus-Response-Reinforcement. 4
  5. 5. The Importance of Environment -we are not likely to deny that the world about us isimportant. -We may disagree as to the nature or extent of the controlwhich it holds over us, but some control is obvious. -Behavior must be appropriate to the occasion. -Failure to keep in touch with reality leads to the kinds ofdifficulties often observed in psychotic behavior. -Even when a man is engaged in rejecting the world, insystematically reducing certain forms of its control over him, he isphysically interacting with it. 5
  6. 6.  TEMPORAL RELATIONSHIPS STIMULUS RESPONSE REINFORCEMENT 1. Certain events tend to occur together. 2. Certain activities of the organism effect certain changes in the environment. 3. Certain events are the occasions upon which certain actions effect certain changes in the environment. 6
  7. 7. Law of Effect & Operant Conditioning - Skinner introduced the term REINFORCEMENT into Thorndike’s Law of Effect. EXPERIMENT POSITIVE NEGATIVELAW OF Thorndike’s The Strength of the The Strength of theEFFECT Puzzle Box connection is increased connection is with in the organisms decreased with in response is the organisms accompanied/followed response is by an annoying state accompanied /followed by an annoying stateOPERANT Skinner’s Box Behavior which is Behavior which isCONDITIONING reinforced tends to not REINFORCED repeat accompanied by punishment is decreased with in the organisms 7 response
  8. 8. 0PERANT CONDITIONING vs. LAW OF EFFECT OPERANT CONDITIONING -Learning is based on the consequences of responding LAW OF EFFECT - Responses that leads to desirable effects are repeated; those that produce undesirable results are not 8
  9. 9. ABC’s Of Operant Conditioning A-ntecedent B-ehavior C-onsequences 9
  10. 10. EXPERIMENTS- A cage that has a bar pedal on one wall that when pressed, causes a little mechanism to release a food pellet into the cage 10
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  12. 12.  Rats & Pigeons  RATS- response levers  Pigeons- response keys w/ a switch SKINNER’S OBSERVATION DEPENDENT VARIABLES  Measures of learning 1. Acquisition Rate - How rapidly an animal can be trained to a new operant behavior as a function of reinforcement 12
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  15. 15. SKINNER’S OBSERVATION3. EXTINCTION RATE TYPES OF REINFORCEMENT 1. PRIMARY - Instinctive Behaviors lead to satisfaction of basic survival needs 2. SECONDARY -Becomes reinforcing when paired w/ primary reinforcer 3. GENERALIZED - Under more than 1 set of circumstances through association w/ more than 1 primary reinforcer 15
  17. 17. PRINCIPLES OF OPERANT CONDITIONING Reinforcement  Positive Reinforcers  Negative Reinforcers WHY IS A REINFORCER REINFORCING? -an organism repeats a response because it finds the consequences "pleasant" or "satisfying.“ -an organism tends to approach or prolong it may be only another way of saying that the stimulus has reinforced the behavior of approaching or prolonging. 17
  18. 18.  PRINCIPLES OF OPERANT CONDITIONING Punishment  Positive Punishment  Negative Punishment UNDESIRABLE EFFECTS OF PUNISHMENT 1. Responses only disappear temporarily 2. Emotional credispositions 3. Any behavior that reduces the aversive stimulation accompanying alibi 18
  19. 19.  PRINCIPLES OF OPERANT CONDITIONING Shaping - Acquisition of complex behavior - Method of successive approximation Extinction - Elimination of behavior - Stopping reinforcement of the behavior 19
  20. 20.  PRINCIPLES OF OPERANT CONDITIONING Generalization - A behavior may performed in more than 1 situation Descrimination - Learning that a behavior will be rewarded in 1 situation, but not another 20
  21. 21. APPLICATION OF OPERANT CONDITIONING TO LEARNING Children at all ages exhibit behavior Teachers & parents are behavior modifiers Requires the learner makes a response for every frame & receives immediate feedback 21
  22. 22. APPLICATION OF OPERANT CONDITIONING TO LEARNING Practice should take the form of question (stimulus) – answer(response) frames which expose the student to the subject in gradual steps Ensure that good performance in the lesson is paired with secondary reinforces 22
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a report for Education 12-facilitating learning


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